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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Blueprints for a B.40 Chassis 2 Litre connecting rod and bushes for production by a supplier.

Identifier  ExFiles\Box 134\5\  scan0029
Date  28th December 1939
  
TO. Rm{William Robotham - Chief Engineer}
c. Rm{William Robotham - Chief Engineer}/Grys
c. Rm{William Robotham - Chief Engineer}/Cts{C. Trot Salt - Carburation}

Ev.{Ivan Evernden - coachwork}5./ 28.12.39

B. 40. Chassis - 2 Litre
Connecting Rod, Sec: 5030

Please receive herewith 1 blueprint of each of the following drawings.

RE. 122 Connecting Rod
RE. 123 Connecting Rod Cap
RE. 125 Bush (Small End)

Will Rm{William Robotham - Chief Engineer}/Cts{C. Trot Salt - Carburation} please forward a set of these prints to Messrs Vandervell's to enable them to produce a small supply of both large and small end bushes.

We have made a detail drawing of the small end bush because it is similar to E.B. 5211 (except for length) which they have already supplied to us. Provision has been made for a big end bush similar to that supplied for Wraith to drawing L. 1134 except for dias.

The dia: of the crankpin is 1.749 -½ with a maximum fillet of .093 and the oil hole feeding the small end will not be required.

Ev.{Ivan Evernden - coachwork}
  
  


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